I just built an FFI Interface for a camera in C++ called from Haskell, it
would be nice to see an interface done for C++ with objects. I got it
working pretty quickly searching around from other sites, but it would be
cool if it was all in one place.
Sort of off topic, I had an issue where the main in C++ ran perfectly fine
calling into what I believe to be a singleton, but calling from Haskell led
to that call freezing every time. If I put the call to the singleton into a
static block, it runs fine calling from Haskell. Is this probably the
"Static order initialization fiasco"?
Charlie
On Sat, Nov 8, 2014 at 10:54 AM, Alex Petrov
Hi Everyone,
I've recently started working on Haskell FFI Tutorial [1]. The repository already contains code that explains how to:
* (expressively) represent C `struct` in Haskell code * call C code from Haskell * call Haskell code from C * operate on nested `struct`s * operate on `struct` arrays * decode `unions` * read and write C fixed-length strings and Pointer-type Strings * how to import functions from, for example, stdlib
I'm still working on more story-like writeups, but the first one (about how to call Haskell from C) is already available [2].
If you have any feedback / comments / questions, know how to improve it or would like to see more things covered, just ping me.
Thanks
[1] https://github.com/ifesdjeen/haskell-ffi-tutorial [2] https://github.com/ifesdjeen/haskell-ffi-tutorial#calling-haskell-from-c
--
Alex https://twitter.com/ifesdjeen
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